Acting as a prism, a diamond can divide light into a spectrum of colors and reflect this light as colorful flashes called fire. Just as when looking through colored glass, color in a diamond will act as a filter, and will diminish the spectrum of color emitted. The less color in a diamond, the more colorful the fire, and the better the color grade.

DAbsolutely colorless. The highest color grade, which is extremely rare.

EColorless. Only minute traces of color can be detected by an expert gemologist. A rare diamond.

F Colorless. Slight color detected by an expert gemologist, but still considered a “colorless” grade. A high-quality diamond.

G-HNear-colorless. Color noticeable when compared to diamonds of better grades, but these grades offer excellent value.